| Company | Timeline | Status | |
| Harrington Energy Storage System Ltd Director • Director | 24 Apr 2023←1 Year 9 Months→4 Feb 2025 | Dissolved | |
| Harrington Nurseries Limited Director • Director | 31 Oct 2007←17 Years→27 Mar 2025 | Active | |
| Dominic Harrington Nurseries Limited Secretary • Unreported | 27 Mar 2002←23 Years→Current | Active | |
